Sheet controlled or operated musical instrument



bec- 7, 192a. 1,609,713

A. P. eusTA s N SHEET CONTROLLED 0R OPERATED MUSICAL INSTRUMENT File dJune 23, 19 22 11? J5 J7 J? 1 @16 J4 J5 [7zc/@ Patented Dec. 7, 1926.

UNITED STATES PATENT OFFICE.

ADGLPZ'I 1?. GUSTAFSON, O15 CHICAGO, ILLINOIS, ASSIGNOR T 111. SCHULZCOMPANY, OF CHICAGO, ILLINOIS.

SHEET CONTROLLED OR OPERATED MUSICAL INSTRUMENT.

Application filed June 23, 1922. Serial No. 570,428.

invention relates to sheet controlled or operated musical instruments,such for example, player pianos and the like.

The principal object of the invention is to improve the arrangement bywhich the music sheet may be held in proper position for operation, asfor example, in proper position relative to a tracker board.

the accompanying drawings Fig. 1 is a view of a portion of a sheetoperated musical instrument having sheet controllingmechanism embodyingmy present inven tion;

Fig. 2 is an end elevation of the same.

Fig. 3 is a cross section taken on line 3-43 in Fig. 1;

Figs. 1 and 5 are views 01"? details of construction.

Referring to the drawings, I show a music box 1 in which are mounted thesupporting spindles 2 and 3 of the music roll 4. A music sheet 5 iscarried by the roll 1 and travels over a tracker 6.

ltleans are provided for engaging the roll 1 and adjusting the samelongitudinally and for ioldithe same in longitudinal adjustment. Themeans shown comprise a pneumatic 7 connected by link 8 to arm 9 on rodRod 10 is provided with cross rods 1111 which extend to and areconnected to red 12. At the ends of rod 12 are pivoted members 13 13pivoted by pins 1l1 lto said rod 12 near its ends. The rod 12 isprei'ierably provided with a plurality irpertnres 15 by which thepivotal connection may be changed. The lugs or pivoted members 13 areprovided with discs 16 prefiiat and having axial pins or stems 17 1 :1oly by uhich they are connected to the members 13. By reason of theirweight men'ibers 13 normally incline downwardly as shown in Fig. 5.

The pneumatic 7 is shown connected with and in the instrument that itwill automatically turn so as to swing the arms 11 downwardly whenplaying is to be started and will. hold them downwardly during suchplaying. As such apparatus is no part of my present invention, beingshown, described and claimed in my application Serial No. 187,942, filedAugust 24:, 1917, for tracking device, my present invention lying in therod 10 and associated parts. When the pneumatic is collapsed and rod 10turned and arms 11 swung downwardly, lugs 13 will move toward spool andwheels or discs 16 will strike against the spool, as shown in dottedlines in Fig. 3. This will swing lugs 13 upwardly so that they will comeinto substantial alinement with rod 12. The outer edges of discs 16 willengage and act against flanges oi roll it so as to adjust said roll intoproper tracking position, and will retain it there as long as pneumatic7 is collapsed. As roll 1- retates the flanges may and do, to a more orlQFS extent, rotate wheels or discs 16, so that friction is practicallyavoided.

The arrangement is very simple an ad vantageous in operation andinexpensive to manufacture.

It will be und rstood that changes and modifications may be made withoutdeparting from the spirit of the invention.

I Vhat I claim is:

1. The combination with the music box of a pneumatic playing instrument,of the music roll therein and mechanism {or controlling the music rollcomprising a rotatable rod, extending lengthwise of the roll near thesame, cross rods extending from said longitudinal rod, a secondlongitudinal rod at the ends of said cross rods and rotary memberscarried by .aid second mentioned longitudinal rod and adapted to en gagethe flange of the music roll.

2; The combination with the music be): of a pneumatic playinginstrument, of the music roll therein and mechanism for controlling themusic roll com arising a rotatable rod extending lengthwise of the rollnear the same, cross rods extending from said longitudinal rod, a secondlongitudinal red at the ends of said cross rods and rotary memberscarried by said second mentioned longitudinal rod and adapted to engagethe flange of the music roll, said second longitudinal rod beingprovided with pivoted end pieces by which said rotary members arecarried.

In witness whereof, I hereunto subscribe my name this 15th day of May,A. D., 1922.

ADOLPH P. GUSTAFSON.

